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I've been using a pair of the HS1s for 5 months now so it's about time I did a review.
PRODUCT NAME AND MANUFACTURER.
Holographic Series 1 by Grownorthern. Manufactured by GN in the UK.
COST.
£375.
SIZE OF ROOM AND AMOUNT OF LIGHTS USED.
1.2m x 1.2m room with 2 HS1s used.
SPECTRUM.
The Holographic LED Module uses the following LEDs:
Production Spectrum 1.0
• Deep Red. 20 LEDs, (650-660nm)
• Royal Blue, 4 LED’s, (440-445nm)
• Warm White, 4 LED’s, (2700K warm white)
• Cool White, 8...

Brand of LED: MarsHydro
Price of the led : About 150$ when I bought the first one and 100$ now.
Delivery cost: free.
What size was the grow space : 3x3x6
Spectrum used: 430~440nm, 450~475nm 620~630nm, 650~660nm, IR, and white
Customer service rating..1-5: 5 - I got free yoyo hanger. Saved me 10$ They are great.
Wattage of the LED ( actual power draw if poss): 300w. I don't know the actual draw but I've seen enough people test my exact model to be confident it's at least 180w
Optics...

Brand of LED: TopLED Mars II 400w
Price of the led : 200-ish
Delivery cost: free shipping
What size was the grow space : The light has a solid 2x2 flowering foot print and a good 3x3 veg foot print.
Spectrum used: Standard all purpose spectrum
Customer service rating..1-5: ?? It was shipped fast but I haven't needed to contact customer service.
Wattage of the LED ( actual power draw if poss): 400w, from others I believe the actual draw to be in the 175-180w range.
Optics used : None...

Next up is the new Auto Ultimate... Thanks DP..
DR 60 tent with 4" Can fan and filter...Single 15L Autopot with airdome in coco/perlite.
Main nutes will be Dutch Pro Autoflowering along with a few additives.
Lighting will be 150w hps dual spec to start with 100w LED added later.
A single Auto Ultimate was placed in a Root Riot and is sitting under hps with heat mat on thermostat... Lets see how she does in a smaller set up.
A little LST will likely be used to make the best use of space...

Brand of LED: Grow Northern MS0006
Price of the led : 249.99GBP - came out to $410.96 in Nov 2013.
Delivery cost: Free Shipping! this was standard for all UK orders but has since been rolled out to shipments here in the US too. Woot Woot! Shipping was also incredibly fast, I live in the South-East US and ordered on a Sunday, unit was at my house on that following Wednesday.
What size was the grow space : 6-Inch Wide by 20-Inch Deep by 63-Inch High
Spectrum used: Epistar 630nm,...

Grownorthern MS0006 LED Review
Hey guys, had a bit of spare time so thought I'd fill out an LED review for reference. I'm aware a few people have reviewed this light already but can't hurt to have too many reviews I guess.
Brand of LED: Grownorthern
Price of the led : ï¿½249.99
Delivery cost: Free
What size was the grow space : 80x80x160cm
Spectrum used: 720nm.660nm,630nm,460nm,2700k (I wasn't sure on this so it's been copied from Tang's review)
Customer service...

Brand of LED: Grow northern
Price of the led : £239.99 (now £189.99)
Delivery cost: Free
What size was the grow space : 70 cm x 50 cm
Spectrum used: Full spectrum
Customer service rating..1-5: 5 top notch guys
Wattage of the LED ( actual power draw if poss): 120w actual power draw
Optics used : 120 degree primary, 90 degree secondary
Build quality: this is a really solid unit, as soon as you pick it up you know that it is quality
Warranty length : 3 years
Any...

Brand of LED: Grownorthern MS0006 (this model was updated in March 2013,this is a review of the old spec)
Price of the led :Â£250
Delivery cost: Free in the EU
What size was the grow space : 1.2m x 1.2m (1 MS0006 for veg 2 for flower)
Spectrum used: 720nm.660nm,630nm,460nm,2700k
Customer service rating: 5/5
Wattage of the LED ( actual power draw if poss): 185w at 25 degrees C.
Optics used : 90 degree similar to the X lenses.
Build quality: 5/5
Warranty length : 3 years...

have had my autocobs for two automatic grow cycles this winter and they performed marvelously. am using them now for a photo grow and they are killing it there as well. love being able to adjust the lights into "zones" where i have my taller ones...